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90 lines
3.0 KiB
C++
90 lines
3.0 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* vim: sw=4 ts=4 et :
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*/
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Code
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*
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* The Initial Developer of the Original Code is
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* The Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Chris Jones <jones.chris.g@gmail.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include <stdio.h>
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#include <stdlib.h> // for abort()
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#if defined(_MSC_VER) // MSVC
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# include <intrin.h> // for __debugbreak()
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#elif defined(XP_WIN) // mingw
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# include <windows.h> // for DebugBreak
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#elif defined(XP_UNIX)
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# include <unistd.h> // for _exit
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#endif
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#if defined(XP_WIN) || (defined(XP_OS2) && defined(__declspec))
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# define MOZALLOC_EXPORT __declspec(dllexport)
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#endif
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#include "mozilla/mozalloc_abort.h"
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static int gDummyCounter;
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static void
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TouchBadMemory()
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{
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// XXX this should use the frame poisoning code
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gDummyCounter += *((int *) 0); // TODO annotation saying we know
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// this is crazy
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}
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void
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mozalloc_abort(const char* const msg)
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{
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fputs(msg, stderr);
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fputs("\n", stderr);
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#if defined(XP_UNIX) && !defined(XP_MACOSX)
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abort();
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#elif defined(_MSC_VER)
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__debugbreak();
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#elif defined(XP_WIN)
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DebugBreak();
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#endif
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// abort() doesn't trigger breakpad on Mac, "fall through" to the
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// fail-safe code
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// Still haven't aborted? Try dereferencing null.
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TouchBadMemory();
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// Still haven't aborted? Try _exit().
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_exit(127);
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}
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